CHARACTERISTICS OF STRENGTH AND PLASTICITY OF TUNGSTEN AND TUNGSTEN-BASE ALLOYS. II. THE PER-SECOND CREEP AND STRESS-RUPTURE STRENGTH TO A BASE OF 1 multiplied by (times) 104 SECONDS.

被引：0

作者：

Bukhanovskii, V.V. ^{[1
]}

Kharchenko, V.K. ^{[1
]}

Kravchenko, V.S. ^{[1
]}

Ol'shanskii, A.B. ^{[1
]}

Golovin, S.A. ^{[1
]}

Nikol'skii, V.N. ^{[1
]}

机构：

[1] Acad of Sciences of the Ukrainian, SSR, Inst of Strength Problems, USSR, Acad of Sciences of the Ukrainian SSR, Inst of Strength Problems, USSR

来源：

Soviet powder metallurgy and metal ceramics | 1985年 / 24卷 / 09期

关键词：

D O I：

10.1007/BF00792174

中图分类号：

学科分类号：

摘要：

The authors report high-temperature creep of technical purity tungsten and W-Y//2O//3-HfO//2 and W-Y//2O//3- less than HfO-Cu alloys prepared by powder metallurgy methods. Short-term creep tests were made in vacuum at 1500-2500 degree C. The applied stresses were about 50-80% of tensile strengths corresponding to the test temperature. The presence of dispersed refractory particles initiates the critical stage of polygonization in creep, which is accompanied by an increase in the creep rate and a decrease in the life of the material.

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页码：728 / 734